From 1430e22a908a065c0f92bf9d347477da423c0b04 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Moritz=20Br=C3=BCckner?= <mail@moritz-brueckner.de>
Date: Sun, 7 Nov 2021 16:48:46 +0100
Subject: [PATCH] Make utils.cpu_count() even more failsafe on Windows

---
 blender/arm/utils.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/blender/arm/utils.py b/blender/arm/utils.py
index 1a0f2c64..83621710 100755
--- a/blender/arm/utils.py
+++ b/blender/arm/utils.py
@@ -1167,7 +1167,8 @@ def cpu_count(*, physical_only=False) -> Optional[int]:
     _os = get_os()
     try:
         if _os == 'win':
-            command = [f'{os.environ.get("SYSTEMROOT")}\\System32\\wbem\\wmic.exe', 'cpu', 'get', 'NumberOfCores']
+            sysroot = os.environ.get("SYSTEMROOT", default="C:\\WINDOWS")
+            command = [f'{sysroot}\\System32\\wbem\\wmic.exe', 'cpu', 'get', 'NumberOfCores']
             result = subprocess.check_output(command)
             result = result.decode('utf-8').splitlines()
             result = int(result[2])